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  Analytic results for the gravitational radiation from a class of cosmic string loops

Allen, B., Casper, P., & Ottewill, A. C. (1994). Analytic results for the gravitational radiation from a class of cosmic string loops. Physical Review D, 50(6), 3703-3712. doi:10.1103/PhysRevD.50.3703.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-5BE6-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-5BE7-E
Genre: Journal Article

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Allen, Bruce1, Author              
Casper, Paul, Author
Ottewill, Adrian C., Author
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1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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 Abstract: Cosmic string loops are defined by a pair of periodic functions a and b, which trace out unit-length closed curves in three-dimensional space. We consider a particular class of loops, for which a lies along a line and b lies in the plane orthogonal to that line. For this class of cosmic string loops one may give a simple analytic expression for the power γ radiated in gravitational waves. We evaluate γ exactly in closed form for several special cases: (1) b a circle traversed M times; (2) b a regular polygon with N sides and interior vertex angle π-2πM/N; (3) b an isosceles triangle with semiangle θ. We prove that case (1) with M=1 is the absolute minimum of γ within our special class of loops, and identify all the stationary points of γ in this class.

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 Dates: 1994-09-15
 Publication Status: Published in print
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 50 (6) Sequence Number: - Start / End Page: 3703 - 3712 Identifier: ISSN: 0556-2821